Home / 644,280.56-889,082.82-357,819.10

Finding the Fourth Proportional to 644,280.56, 889,082.82 and 357,819.10

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Solution

The fourth proportional to 644,280.56, 889,082.82 and 357,819.10 is: 493,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,280.56 : 889,082.82 = 357,819.10 : x
  2. Step 2: Convert to fraction form
    644,280.56/889,082.82 = 357,819.10/x
  3. Step 3: Cross multiply
    644,280.56x = 889,082.82 × 357,819.10
  4. Step 4: Simplify right side
    644,280.56x = 318,130,814,477.86
  5. Step 5: Solve for x
    x = 318,130,814,477.86/644,280.56
  6. Step 6: Final answer
    x = 493,776.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.